Dictionary

geosynchronous

adjective geo·syn·chro·nous \ˌjē-ō-ˈsiŋ-krə-nəs, -ˈsin-\

Definition of GEOSYNCHRONOUS

:  being or having an orbit around the earth with a period equal to one sidereal day; specifically :  geostationary
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First Known Use of GEOSYNCHRONOUS

1968

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